Calculating-machine.



COPY I. A. IURCK,

CALCULATING MACHINE.

APPLICATION FILED OCT. 9.4911.

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meme@ Sept'. 28, 1915e 2 SHEETS-SHEET I.

J. A. TURCK.

CALCULATING MACHINE.

APPucATmN FILED ocT.9.1911.

Patented Sept. 28, 1915.

2 SHEETS-.SHEET 2.

jm/ga @we UNITED sTATEs PATENT oEEicE.

JOSEPH ABRAM TURCK, OF CHICAGO, ILLINOIS, ASSIGNOR TO FELT & TARRANT MANU- FACTURIN COMPANY, OF CHICAGO, ILLINOIS, A' CORPORATION 0F ILLINOIS.

CALCULATING-MACHIN E.

To. all wwm t may concern Be it known that I, JOSEPH A. TURCK, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Calculating-Machines, of which the following is a specification.

This invention relates to'prime-actuating mechanism for that type'of keyboard calculating-machines in which the register opv erates in immediate response to the manipulationof the key designating the values to f be registered, without requiring the inter Vvening manipulation of any other powerl providing or power-controlling keys or levers; and the invention relates more particularly to such calculating-machines as are typified by the disclosures in, for instance, the Felt Patents 762,520; 960,528; 1,028,344; 1,072,934 and 1,088,219.

One object of the invention is to provide a mechanism that will respond to exceedingly high-speedl manipulation of the keyboard and at the same time minimize the effort required to manipulate the keys, and transmit positively to the numeral wheels the power imparted by the manipulation of the keys.

Another object is to provide a primeactu ating mechanism for such machines, in which a freely oscillating member shall transmit to the rotary numeralwheel mechanism the power imparted by the keys df each column to the column-member that they directly actuate; 'whereby the lsaid rotary mechanism may be actuated by lan oscillating member pivoted relatively of the pivoting of the long column-member extending under the column of keys. 'And the invention has for further objects such other improvements in structure and operation as may be found to obtain in the devices hereinafter described or claimed.

A particular eXempliication of the invention is embodied, for purposes of illustration, in the accompanying drawings,

for-ming a part of this specification; but the invention is of course not limited to such.V

specific illustrative embodiment.

In said drawings Figure 1 is a longitudinal section of a machine embodyinginy" a section on the linel invention. Fig. 2 is 2-2 of Fig. 1. Fig. 3 is a1 side elevation of the wheel by which the numeral 'wheel is controlled. Fig. 4 is aside view of the numeral wheel. Fig. 5 is a perspective of the near it and independently the oscillatin 23 is also escapements one of which engages the column actuator and the other of which engages the wheel of Fig.. 3. Fig. 6 is a section on the line 6-6 of Fig. 1. Fig. 7 is a partial section taken in a plane adjacent to that of Fig. 1. Fig. 8 is a section on the line 8-8 of Fig. 7.

In said drawing 9 represents the top of a calculating machine embodying my invention, and 10, 10 represent. the longitudinal plates separating the denominations from each other. The denominational or column actuators are shown at 11 and they .are pivoted at 12. Retracting or lifting springs are provided for each actuator as indicated at 13. The keys 14 of which there are nine in each denomination, are arranged' in denominational rows and are each adapted to be depressed by hand, vided with lateral projections 15 w ich when the keys are actuated, engage the actuator' of the denomination to which the keys belong and move such actuator downward a greater or less distance proportioned to the power of the keys which may have been struck, the keys being also provided with individual lifting springs 16 by which theyaie raisedV after each depressing operation.

The numeral wheels are shown at l7`and are Inountedii4 the shaft 18 and they are actuated from the column-actuator by the 'mechanism now-to be described. The coly front end are provided withhorizontall'y projecting teeth the sides ofwhichslope in opposite directions from thecrownsl) to the bases, and are adapted to impart impulses or rocking movements to i device 20 which meshes with it without e ecting any arbitrary arrest of the actuator. v'.lhedevice 20 is pivoted upon ahorizontal Icross wire 21, and its ends are turned'so as to form lateral teeth 22-which alternately enter between the teeth of the actuator*andA by -means of which the actuator compels-the oscillation of the device 20 on the wire 21.-` AA second oscillating device pivotedon the same 'wire 21 and is desirably made in onepiece with the oseillator 20and oscillates therewith, 'and its oiee is to positively" drive the numeral Wheei of the denomination to which the actuator and the oscillating devices belong. The device 23 is fashioned as shown at F igs. y5 and .2, and its upper end is given a proyumn actuators at the and are also each Ipronounced and elongated hook form as shown at 23a, and at the `lower end its upper surtace is cut out at 23". By these features the operation of the two oscillating devices is as follows: Supposing the parts to be in the position of Fig. l, the bottom of device 2O is in contact with the bottom tooth 19 of the actuator, andthe upper tooth of the device 20 is disengaged. Whenever the actuator is depressed, the bottom of oscillator 20 will be first moved outward and its upper end forced' inward, giving it an oscillation or impulse which is transmitted to the oscillator 23. If the movement of the actuator is continued after lthe action described has taken place, a like impulse will be giventhe oscillator Q0 with each additional tooth 19 which passes and acts similarly against the bottom tooth of the oscillator 20, the number of impulses depending thus upon the exact extent to which the actuator is depressed.

Oscillator 23 is actuated simultaneously with oscillator 20 and to the same extent. In these impulses or movements of oscillator 23, the lower end iirst moves upward, its extremity passing .behind the nearest tooth of the wheel 24:y which is attached to the numeral wheel ashereinai'ter explained, so that the cut out surface 23 then acts upon the wheel and starts it to rotate. lVhile the lower end is thus starting the wheel, the upper or hook end of the oscillator is moving oil of the tooth which at the time of starting is under its hook, and as soon as the upper end is -free from said tooth it starts to lmove inward of the wheel in the space between said tooth and the next one in order.

In thus entering between the last mentioned teeth, it exerts power upon them received by it from the actuator and thus continues the rotation of the wheel inaugurated by the lower end of the oscillator 23 until the upper end of the said oscillator reaches its innermost position in which it is adapted toarrest the wheel unless the oscillator should immediately receive one or more `further impulses. The operations above described of both oscillators follow and occur with each impulse received by oscillator 2O from the column actuator. Y

The wheel 24 is provided with a long hub 25, which loosely encircles the numeral shaft 18, and the numeral wheel 17 of the same denomination is mounted upon said hub and secured permanently to the wheel 2i bv pins Q6 as hewn. The wheel 2i may appropriately be termed the star wheel.y its teeth being V- shaped and sloping equally' on both sides.

By the mechanism above described, I am s enabled t`o positively drive the numeral 4 nation: a column of denominational driving-keys; `a column-member co-acting with wheel from the column actuator, by positively acting camming devices without the use of springs actingon or assistingthan in any way, the oscillators acting as cams with Consequently, y

the column actuator and the star wheel and producing a cam action upon the star wheel and causing it to rotate to the extent indicated by the movement of the actuator.

To stop the column actuators at the end of thevkey strokes, and prevent any possible over-movement of the actuators, I employ the mechanism used for some time past in the machines known as the comptometer and illustrated in Patent No. 762520. In this mechanism, the vertical portion of the column actuators is provided with a series of shoulders 3l, 32, 33, 34 and 35 in the form of ratchet teeth. Adjacent to each actuator are two swinging l vers 36 and 37 pivoted on the cross rod 3 at the rear of the machine. These levers are engaged and depressed by projections 39 formed on the keys, the projections "on the odd number keys engaging the lever 36, and those on the even number keys engaging the lever 37. The levers swing pivoted elbow levers or stops 40 and 41 pivoted on cross rod 42, and

lsuch stops are provided with teeth 45 and 46 adapted to arrest the acti'iatcr, the tooth 46 being in a lower plane than tooth 45 and acting later. Each stop is engaged by the goosenecks on the ends of the lever 36 and 3.7. Further, details i. of the operation ot' this portion of the machine may be gathered from said patent to which reference is made.

I claim l. In prime-actuating mechanism for a key-driven calculating-machine, in combination: a column of denominational driving-keys; a. swinging column-member coacting with the keys and driven by them severally to swing a distance proportioned to their respective values;. rotary numeralwheel mechanism; and an oscillating member intermediate said driven column-member and said numeral-wheel mechanism and acting to-transmit definitely to' the numeralwheel mechanism the power imparted to the column-member by the-keys.

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2. In prime-.actuating mechanism for a the keys and driven by them severally in proportion to their respective values; rotary lll maaar g 3 numeral wheel mechanism; and a cam- A memberV intermediate said driven columnmember and said numeral-Wheel mechanism vand acting by repeated camming impulses to transmit definitely to the numeral-Wheel mechanism the povver imparted to the col-v umn-member by the keys. y

4. In a calculating machine the combination of a numeral wheel and an actuating mechanism therefor, the latter embracing a series of'keys, camv devices adapted to rotate the numeral wheel, and means whereby the keys may act upon and control said cletate said wheel, in combination with a series of keys and means for operating said devices by the keys. f

7. In' a calculating machine, a numeral wheel and oscillating devices adapted to rotate said Wheel, in combination with a segment lever with cam faces, a series of keys actuating said` lever, the said cam faces actuating the oscillatin devices in rotating the wheel.

8. ln a calculating machine a numeral Wheel and an oscillating device adapted to move said wheel forward one tenth at each oscillation, in combination with a segment lever with cam faces engaging said oscillating device and oscillating the same, and a series of keys operating the segment lever.

J OSEPH ABRAM TURCK.

lVitnesses PEARL ABRAMS, EDW. S. EVARTS.

Copies of this patent may be obtained for live cents each, by addressing the Commissioner of Patents,

` Washington, E. G. 

